draw_pt.c File Reference

Include dependency graph for draw_pt.c:

Go to the source code of this file.

Functions
static unsigned	trim (unsigned count, unsigned first, unsigned incr)
static boolean	draw_pt_arrays (struct draw_context *draw, unsigned prim, unsigned start, unsigned count)
boolean	draw_pt_init (struct draw_context *draw)
void	draw_pt_destroy (struct draw_context *draw)
static void	draw_print_arrays (struct draw_context *draw, uint prim, int start, uint count)
	Debug- print the first 'count' vertices.
void	draw_arrays (struct draw_context *draw, unsigned prim, unsigned start, unsigned count)
	Draw vertex arrays This is the main entrypoint into the drawing module.
boolean	draw_pt_get_edgeflag (struct draw_context *draw, unsigned idx)

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Function Documentation

void draw_arrays	(	struct draw_context *	draw,
		unsigned	prim,
		unsigned	start,
		unsigned	count
	)

Draw vertex arrays This is the main entrypoint into the drawing module.

Parameters:

	prim	one of PIPE_PRIM_x
	start	index of first vertex to draw
	count	number of vertices to draw

Definition at line 278 of file draw_pt.c.

References pipe_vertex_buffer::buffer_offset, debug_printf(), draw_do_flush(), DRAW_FLUSH_STATE_CHANGE, draw_print_arrays(), draw_pt_arrays(), draw_pt_reduced_prim(), MIN2, pipe_vertex_element::nr_components, draw_context::nr_vertex_buffers, draw_context::nr_vertex_elements, pf_name(), pipe_vertex_buffer::pitch, draw_context::pt, draw_context::reduced_prim, reduced_prim, pipe_vertex_element::src_format, draw_vertex_shader::state, tgsi_dump(), pipe_shader_state::tokens, draw_context::user, draw_context::vertex_buffer, draw_context::vertex_element, draw_context::vertex_shader, and draw_context::vs.

{
   unsigned reduced_prim = draw_pt_reduced_prim(prim);
   if (reduced_prim != draw->reduced_prim) {
      draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
      draw->reduced_prim = reduced_prim;
   }

   if (0)
      draw_print_arrays(draw, prim, start, MIN2(count, 20));

#if 0
   {
      int i;
      debug_printf("draw_arrays(prim=%u start=%u count=%u):\n",
                   prim, start, count);
      tgsi_dump(draw->vs.vertex_shader->state.tokens, 0);
      debug_printf("Elements:\n");
      for (i = 0; i < draw->pt.nr_vertex_elements; i++) {
         debug_printf("  format=%s comps=%u\n",
                      pf_name(draw->pt.vertex_element[i].src_format),
                      draw->pt.vertex_element[i].nr_components);
      }
      debug_printf("Buffers:\n");
      for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
         debug_printf("  pitch=%u offset=%u ptr=%p\n",
                      draw->pt.vertex_buffer[i].pitch,
                      draw->pt.vertex_buffer[i].buffer_offset,
                      draw->pt.user.vbuffer[i]);
      }
   }
#endif

   /* drawing done here: */
   draw_pt_arrays(draw, prim, start, count);
}

static void draw_print_arrays	(	struct draw_context *	draw,
		uint	prim,
		int	start,
		uint	count
	)			[static]

Debug- print the first 'count' vertices.

Definition at line 186 of file draw_pt.c.

References assert, debug_printf(), draw_context::nr_vertex_elements, PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, pipe_vertex_buffer::pitch, draw_context::pt, pipe_vertex_element::src_format, pipe_vertex_element::src_offset, draw_context::user, draw_context::vertex_buffer, pipe_vertex_element::vertex_buffer_index, and draw_context::vertex_element.

{
   uint i;

   debug_printf("Draw arrays(prim = %u, start = %u, count = %u)\n",
                prim, start, count);

   for (i = 0; i < count; i++) {
      uint ii, j;

      if (draw->pt.user.elts) {
         /* indexed arrays */
         switch (draw->pt.user.eltSize) {
         case 1:
            {
               const ubyte *elem = (const ubyte *) draw->pt.user.elts;
               ii = elem[start + i];
            }
            break;
         case 2:
            {
               const ushort *elem = (const ushort *) draw->pt.user.elts;
               ii = elem[start + i];
            }
            break;
         case 4:
            {
               const uint *elem = (const uint *) draw->pt.user.elts;
               ii = elem[start + i];
            }
            break;
         default:
            assert(0);
         }
         debug_printf("Element[%u + %u] -> Vertex %u:\n", start, i, ii);
      }
      else {
         /* non-indexed arrays */
         ii = start + i;
         debug_printf("Vertex %u:\n", ii);
      }

      for (j = 0; j < draw->pt.nr_vertex_elements; j++) {
         uint buf = draw->pt.vertex_element[j].vertex_buffer_index;
         ubyte *ptr = (ubyte *) draw->pt.user.vbuffer[buf];
         ptr += draw->pt.vertex_buffer[buf].pitch * ii;
         ptr += draw->pt.vertex_element[j].src_offset;

         debug_printf("  Attr %u: ", j);
         switch (draw->pt.vertex_element[j].src_format) {
         case PIPE_FORMAT_R32_FLOAT:
            {
               float *v = (float *) ptr;
               debug_printf("%f  @ %p\n", v[0], (void *) v);
            }
            break;
         case PIPE_FORMAT_R32G32_FLOAT:
            {
               float *v = (float *) ptr;
               debug_printf("%f %f  @ %p\n", v[0], v[1], (void *) v);
            }
            break;
         case PIPE_FORMAT_R32G32B32_FLOAT:
            {
               float *v = (float *) ptr;
               debug_printf("%f %f %f  @ %p\n", v[0], v[1], v[2], (void *) v);
            }
            break;
         case PIPE_FORMAT_R32G32B32A32_FLOAT:
            {
               float *v = (float *) ptr;
               debug_printf("%f %f %f %f  @ %p\n", v[0], v[1], v[2], v[3],
                            (void *) v);
            }
            break;
         default:
            debug_printf("other format (fix me)\n");
            ;
         }
      }
   }
}

static boolean draw_pt_arrays	(	struct draw_context *	draw,
		unsigned	prim,
		unsigned	start,
		unsigned	count
	)			[static]

Definition at line 56 of file draw_pt.c.

References draw_context::bypass_clipping, pipe_rasterizer_state::bypass_vs, draw_need_pipeline(), draw_pt_elt_func(), draw_pt_elt_ptr(), draw_pt_split_prim(), draw_pt_front_end::finish, draw_context::force_passthrough, draw_context::front, draw_context::middle, draw_context::no_fse, draw_pt_front_end::prepare, draw_context::pt, PT_CLIPTEST, PT_PIPELINE, PT_SHADE, draw_context::rasterizer, draw_context::render, draw_pt_front_end::run, draw_context::test_fse, trim(), TRUE, and draw_context::user.

{
   struct draw_pt_front_end *frontend = NULL;
   struct draw_pt_middle_end *middle = NULL;
   unsigned opt = 0;

   /* Sanitize primitive length:
    */
   {
      unsigned first, incr;
      draw_pt_split_prim(prim, &first, &incr);
      count = trim(count, first, incr); 
      if (count < first)
         return TRUE;
   }

   if (!draw->force_passthrough) {
      if (!draw->render) {
         opt |= PT_PIPELINE;
      }
      
      if (draw_need_pipeline(draw,
                             draw->rasterizer,
                             prim)) {
         opt |= PT_PIPELINE;
      }

      if (!draw->bypass_clipping && !draw->pt.test_fse) {
         opt |= PT_CLIPTEST;
      }
      
      if (!draw->rasterizer->bypass_vs) {
         opt |= PT_SHADE;
      }
   }
      
   if (opt == 0) 
      middle = draw->pt.middle.fetch_emit;
   else if (opt == PT_SHADE && !draw->pt.no_fse)
      middle = draw->pt.middle.fetch_shade_emit;
   else
      middle = draw->pt.middle.general;


   /* Pick the right frontend
    */
   if (draw->pt.user.elts || (opt & PT_PIPELINE)) {
      frontend = draw->pt.front.vcache;
   } else {
      frontend = draw->pt.front.varray;
   }

   frontend->prepare( frontend, prim, middle, opt );

   frontend->run(frontend, 
                 draw_pt_elt_func(draw),
                 draw_pt_elt_ptr(draw, start),
                 count);

   frontend->finish( frontend );

   return TRUE;
}

void draw_pt_destroy

(

struct draw_context *

draw

)

Definition at line 153 of file draw_pt.c.

References draw_context::front, draw_context::middle, and draw_context::pt.

{
   if (draw->pt.middle.general) {
      draw->pt.middle.general->destroy( draw->pt.middle.general );
      draw->pt.middle.general = NULL;
   }

   if (draw->pt.middle.fetch_emit) {
      draw->pt.middle.fetch_emit->destroy( draw->pt.middle.fetch_emit );
      draw->pt.middle.fetch_emit = NULL;
   }

   if (draw->pt.middle.fetch_shade_emit) {
      draw->pt.middle.fetch_shade_emit->destroy( draw->pt.middle.fetch_shade_emit );
      draw->pt.middle.fetch_shade_emit = NULL;
   }

   if (draw->pt.front.vcache) {
      draw->pt.front.vcache->destroy( draw->pt.front.vcache );
      draw->pt.front.vcache = NULL;
   }

   if (draw->pt.front.varray) {
      draw->pt.front.varray->destroy( draw->pt.front.varray );
      draw->pt.front.varray = NULL;
   }
}

boolean draw_pt_get_edgeflag	(	struct draw_context *	draw,
		unsigned	idx
	)

Definition at line 316 of file draw_pt.c.

References draw_context::pt, and draw_context::user.

{
   if (draw->pt.user.edgeflag)
      return (draw->pt.user.edgeflag[idx/32] & (1 << (idx%32))) != 0;
   else
      return 1;
}

boolean draw_pt_init

(

struct draw_context *

draw

)

Definition at line 124 of file draw_pt.c.

References debug_get_bool_option(), draw_pt_fetch_emit(), draw_pt_fetch_pipeline_or_emit(), draw_pt_middle_fse(), draw_pt_varray(), draw_pt_vcache(), FALSE, draw_context::front, draw_context::middle, draw_context::no_fse, draw_context::pt, draw_context::test_fse, and TRUE.

{
   draw->pt.test_fse = debug_get_bool_option("DRAW_FSE", FALSE);
   draw->pt.no_fse = debug_get_bool_option("DRAW_NO_FSE", FALSE);

   draw->pt.front.vcache = draw_pt_vcache( draw );
   if (!draw->pt.front.vcache)
      return FALSE;

   draw->pt.front.varray = draw_pt_varray(draw);
   if (!draw->pt.front.varray)
      return FALSE;

   draw->pt.middle.fetch_emit = draw_pt_fetch_emit( draw );
   if (!draw->pt.middle.fetch_emit)
      return FALSE;

   draw->pt.middle.fetch_shade_emit = draw_pt_middle_fse( draw );
   if (!draw->pt.middle.fetch_shade_emit)
      return FALSE;

   draw->pt.middle.general = draw_pt_fetch_pipeline_or_emit( draw );
   if (!draw->pt.middle.general)
      return FALSE;

   return TRUE;
}

static unsigned trim	(	unsigned	count,
		unsigned	first,
		unsigned	incr
	)			[static]

Definition at line 40 of file draw_pt.c.

{
   if (count < first)
      return 0;
   return count - (count - first) % incr; 
}

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